Home / 2,122.39-2,927.61-1,523.70

Finding the Fourth Proportional to 2,122.39, 2,927.61 and 1,523.70

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Solution

The fourth proportional to 2,122.39, 2,927.61 and 1,523.70 is: 2,101.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.39 : 2,927.61 = 1,523.70 : x
  2. Step 2: Convert to fraction form
    2,122.39/2,927.61 = 1,523.70/x
  3. Step 3: Cross multiply
    2,122.39x = 2,927.61 × 1,523.70
  4. Step 4: Simplify right side
    2,122.39x = 4,460,799.36
  5. Step 5: Solve for x
    x = 4,460,799.36/2,122.39
  6. Step 6: Final answer
    x = 2,101.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.